Heat-controller for air-cooled engines.



L. W. GRISWOLD. HEAT CQNTROLLER FOR AIR COOLED ENG|NE&

APPLlCATION. FILED. MAR. 29. 1917.

1,257,521 8. Patented Feb. 19, 1918.

"illlllllll W. GRESWUI-B, Q35 GQQPTELE,

Application filea march 29, $17.

I! all whom it may cor wows:

Be it known that I, Lesm .Gmewooo e a citizen of the United States, and resideii", of Cooper, in the county of Greene and State 5 of Iowa have invenied certain new and.

useful lieetlonn'oller for Air-Cooled Engines, of which the 'folicwiiig; is a sgleeifi CEL'HOZL The objeci; of my iflveiition is to provide an air oontroi cleviee for ail cooled engines of simple, durable enol inexpeiasive construeiion.

More particularly it is my olog'ect to previde an air control device especially adageed for use on motor vehicles such for mstance es the Franklin cei' Still a further object is to provide such e device capable of acljus'tiog the amount passing bile eyliiiders for cooling the engine,

eiiil e furilier object is to provide such a device having closure devi es, and means for accurately controlling said closure devices for eeiiiog them in a variety of posi- Eli; set forth, pointed one in my claims emi illostrotezi in the accompanying (lg-ewincs, in which:

l i ure i shows o vez'iicel, sectional View he clash and hood of an automobile F. Wi'isi my impxoved air controllecl View of the eel beiioe removed. shows 2 sectional View teken 31 the line 3+3 oi: F 1g. 2, anal Fig. i shows a izop or plan viewof one of iLllQ cylinders showing port of the automobile consroi device thereon, v

In the oecompenyizig drawings 1' have used the referee-co numerel 10 to indicate 'eiierelly the flash of a mole: vehicle, hav mg the body 11. v

At the forward ema l of themotoi' vehicle is iii en ioe leaving the crmk casing 12 aml cylinders ISeiow the engine is the Y casing member 1% for inelosing Sgeoifieeiion oi Mites-e Eases;

"tween the cylinders 13 end el an engine of the air ooolecl *bype, the engine is a hoocl 15 pivoted. s 4 end at 16 to tilt upwardly The casing member Llhes u tension 1? located inwardly of portion of the hood i5 eeei o liorizoiiigol partition member which the cylinders e2 pereiiion l3 clivielee hood 1% and casing compartments:

The cyliziders ijackets 1Q WELL. between the bodies 0 jackets At the rear end of the easie is an upward extension 21, end of the paytition 18 is e clow tension The memizees 2 the rear eml "E $2123 easing and they have ex oeiiiz'olope meeting with on air pump 2e air through the comperimeiiie below the partition 18 oncl elow My improved contiol a, substantially rectsizg roiigecl forwei'clly of "ie lower portion iiiereoi't, 3 tension 17 and the loweif of the hood, as ill'usimieel in l Arranged transversely oi. iii tween the encls the frame i from each oilier is a plumli 7 memeere or i'JifiCiES aer members 27 may be moo able Way for permitting" opening or the frame memlierel The shutter memlo with spindles 28 e mooiite l in the members @pemiiveiy connect-edi w member 2? is e downwardly arm 29, shown in Fig. 3 M ml i ranged in substantially hoiizozitei longitudinally of the machine, is the ends of all of the arms #9, ill in- Fi 3. Operatively conneoiecl with shutter members 2? is an upwecdly wardly extending arm 31 to cited an upwardly extending hub 15 is proviclecl oi; its forw a plurality of air openings Just rearwardly of the forwsifi hood is mounted a frame 34 having top and end members. A plurality of shutter members 35 are arranged within the outline of the frame 34; transversely of the machine and are spaced from each other, as illustrated in Fig. 3.

The shutter members 35 may be mounted in any suitable way for permitting their rotation, and as shown are provided with laterally extending spindles 36 rotatably mounted in the end of the members of the frame 34.

Gperatively connected with each shutter member 35 is a downwardly and rearwardly extending arm 37. A link 39 is pivotally connected with all of the arms 37. 1

Operatively connected with the upper shutter member 35 is a pair of upwardly extending arms 40 and il. Operatively, connected with the upper shutter member35 is a downwardly and rearwardly extending arm L2, pivotally connected with the upper end of the link 32.

The arms i0 and ii are pivoted to links 43 and ed rearwardly in the machine, as shown in rigs. l and 2. Each link 43 and- 14 has its rear end extended through an opening 45 in the dash l0, and is provided on its lower surface with a plurality of teeth 46 to coact with a plate e7 mounted on the dash. The teeth 46 and plate 47 are so arranged that when the ljmks l3 and l are in position with the plate 1? engaged b the teeth 46, the rearward movement 0 the links a3 and 31 is prevented.

Secured to each link 43 and 44 is a collar :28 having an upwardly extending arm 49 to which'is secured a coil spring 50 extending forwardly in the machine and secured at its forward end to the dash 10. Y

The springs 59 normally hold the links as and the positions of their movement. The parts are so arranged that when said links are in such rearward position, the shutter members 35 and 27 are open. Gr. the rear ends of the links 43 and 4A are heads 51. By pushing the links 43 and A forwardly in the machine, the shutter members 25 and 2'? may be moved to closed position and will be held in such position by means of the engagement of the plate 47 with tee h l6, until the rear ends of the links as and n are raised to release the teeth from engagement with such plate.

"it will be seen "that because there are a variety ct teeth as on each link 4:3 and 44,-

shutter memoers 2? open position for lim iting the amount of air passing through the compartments above and below the partition 18 and between the engine cylinders and their jackets 19.

Another very important advantage of my air controlling device arises from the fact that by closing all of the shutter members, the circulation of air around the engine heneath the hood can be prevented. This is very important in cold weather for the reason'that air cooled engines of this type cool off very rapidly when the car is stopped and make it very difiicult to start the engine. By retaining the heated air beneath the hood it takes considerably longer for the engine to cool ofil.

In order to avoid any difliculty which might arise due to the fact that the driver of the car might forget to open the shutter members after having been closed, I have provided means for automatically opening said shutter members when the cylinder jackets reach a certain temperature.

I provide a thermostat comprising a pair of strips 54 and 55 secured together and to one of the jackets 19 at one end. These strips are made of two different kinds of metal, as for instance, copper and iron. The inner strip 15 is connected with a link 56 by means of a socket 5? which is screw-thread.- ed and is screwed on to the screw-threaded end of the link 56 to permit adjustment. The socket 57 is pivoted. to the strip as.

Centrally pivoted on a bracket 59, preierably on the dash 10, is a hell-crank 1%791160 one end of which is pivoted to the link 56.

The other end of the bell-crank lever rests beneath both of the links 43 and 44-.

When the engine is cooled, the thermostat comprising the strips 54 and 55 stands in such position that the upper arm or the hell crank lever 630 permits the links 43 and ist to remain in their lower positions with their teeth engaging the plate li. When, however, the cylinder jacket on which the thermostat is mounted is heated to a certain predetermined temperature, the thermostat will move the link 56 for operating the bell crank lever 60 for causing its upper arm to engage and raise the links 43 and'ee; until the teeth 46 move out of engagement with the plate 47, whereupon. the springs 56 will move the links 43 and 4A for opening the shutter members.

It should be mentioned in this connection that the adjustment of the socket 57 on the link 56 is rovided so that the parts may be adjusted or con rolling the bell-crank lever 60 at difierent predetermined temperatures.

The advantages of this construction are largely seen from thetoregoing description.

The frames 26 and 34Eare rigidly connected together by means of frame members 85. Any suitable means may be provided. for mounting the frame containing the closure devices on the machine, but I have provided manners on the frame 34 a plurality of bolts 66, which as shown, are extended through the member 17 and receive suitable nuts for securely fastening the frames to the casing member 17 Secured to the frame 34; '1: the forward portion thereof is a packing strip 68 extending forwardly from the frame 34, and adapted to engage the forward portion of the hood for preventing the passage of air through the openings 33 and around the frame 34:.

Some changes may be made in the construction and arrangement of the various parts of my improved air controlled device without departing from the essential features and purposes of my invention, and it is my intention to cover by the patent to be issued upon my application, any n odified forms of structure or use of mechanical equivalents, which may be reasonably included within the scope of my claims.

I claim as my invention:

1. A heat controller for air cooled engines comprising a frame having a portion designed to fit adjacent to an opening in the front wall of an automobile hood and having another portion adapted to fit adjacent to an opening below said first opening said portions lying in substantially difl erent planes, shutter closure devices su ported by said difierent portions of said ame, and means for operating said shutter closure devices.

2. A heat controller for air cooledengines comprising a frame having a portion designed to fit adjacent to an openingjn the front wall of an automobile hood and having another portion adapted to fit adjacent to an opening below said first o ening, said portions lying in substantial y diflerent planes, shutter closure devices supported by said different portions of said frame, means for operating said shutter closure devices, and means for operating the lower closure device including the pivoted member on the upper portion of said frame.

Des Moines Iowa, March 19, 1917.

LESLIE W. GRISWOLD. 

